13122229 has 2 divisors, whose sum is σ = 13122230. Its totient is φ = 13122228.

The previous prime is 13122227. The next prime is 13122247. The reversal of 13122229 is 92222131.

13122229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 5152900 = 2823^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122229 - 2¹ = 13122227 is a prime.

Together with 13122227, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561114 + 6561115.

It is an arithmetic number, because the mean of its divisors is an integer number (6561115).

Almost surely, 2^13122229 is an apocalyptic number.

It is an amenable number.

13122229 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122229 is an equidigital number, since it uses as much as digits as its factorization.

13122229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 13122229 is about 3622.4617320270. The cubic root of 13122229 is about 235.8680975554.

The spelling of 13122229 in words is "thirteen million, one hundred twenty-two thousand, two hundred twenty-nine".